CN101350200A - 具有电流垂直于平面传感器的磁头 - Google Patents
具有电流垂直于平面传感器的磁头 Download PDFInfo
- Publication number
- CN101350200A CN101350200A CN 200810133855 CN200810133855A CN101350200A CN 101350200 A CN101350200 A CN 101350200A CN 200810133855 CN200810133855 CN 200810133855 CN 200810133855 A CN200810133855 A CN 200810133855A CN 101350200 A CN101350200 A CN 101350200A
- Authority
- CN
- China
- Prior art keywords
- magnetic head
- sensor
- magnetosphere
- pinned magnetosphere
- pinned
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
- G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
- G11B5/3903—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects using magnetic thin film layers or their effects, the films being part of integrated structures
- G11B5/3906—Details related to the use of magnetic thin film layers or to their effects
- G11B5/3909—Arrangements using a magnetic tunnel junction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y10/00—Nanotechnology for information processing, storage or transmission, e.g. quantum computing or single electron logic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y25/00—Nanomagnetism, e.g. magnetoimpedance, anisotropic magnetoresistance, giant magnetoresistance or tunneling magnetoresistance
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
- G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
- G11B5/3903—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects using magnetic thin film layers or their effects, the films being part of integrated structures
- G11B5/3906—Details related to the use of magnetic thin film layers or to their effects
- G11B5/3929—Disposition of magnetic thin films not used for directly coupling magnetic flux from the track to the MR film or for shielding
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
- G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
- G11B2005/3996—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects large or giant magnetoresistive effects [GMR], e.g. as generated in spin-valve [SV] devices
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Nanotechnology (AREA)
- Crystallography & Structural Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (AREA)
- Hall/Mr Elements (AREA)
- Magnetic Heads (AREA)
Abstract
Description
Claims (28)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/879,667 | 2007-07-17 | ||
US11/879,667 US9007727B2 (en) | 2007-07-17 | 2007-07-17 | Magnetic head having CPP sensor with improved stabilization of the magnetization of the pinned magnetic layer |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101350200A true CN101350200A (zh) | 2009-01-21 |
CN101350200B CN101350200B (zh) | 2011-04-13 |
Family
ID=40264665
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 200810133855 Active CN101350200B (zh) | 2007-07-17 | 2008-07-17 | 具有电流垂直于平面传感器的磁头 |
Country Status (3)
Country | Link |
---|---|
US (1) | US9007727B2 (zh) |
JP (1) | JP2009026442A (zh) |
CN (1) | CN101350200B (zh) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7580230B2 (en) * | 2006-10-24 | 2009-08-25 | Hitachi Global Storage Technologies Netherlands B.V. | Magnetoresistive sensor having shape enhanced pinning, a flux guide structure and damage free virtual edges |
US7869166B2 (en) * | 2007-02-20 | 2011-01-11 | Tdk Corporation | Thin film magnetic head having a bias magnetic layer provided with antiferromagnetic layer and a pinned layer provided with hard magnetic layer |
US8125746B2 (en) * | 2009-07-13 | 2012-02-28 | Seagate Technology Llc | Magnetic sensor with perpendicular anisotrophy free layer and side shields |
US8705213B2 (en) * | 2010-02-26 | 2014-04-22 | Seagate Technology Llc | Magnetic field detecting device with shielding layer at least partially surrounding magnetoresistive stack |
US8580580B2 (en) * | 2010-04-01 | 2013-11-12 | Seagate Technology Llc | Magnetic element with varying areal extents |
US8797694B2 (en) * | 2011-12-22 | 2014-08-05 | HGST Netherlands B.V. | Magnetic sensor having hard bias structure for optimized hard bias field and hard bias coercivity |
US8842395B2 (en) * | 2012-12-19 | 2014-09-23 | HGST Netherlands B.V. | Magnetic sensor having an extended pinned layer and shape enhanced bias structure |
US8836059B2 (en) | 2012-12-21 | 2014-09-16 | HGST Netherlands B.V. | Shape enhanced pin read head magnetic transducer with stripe height defined first and method of making same |
US8970991B2 (en) * | 2013-03-12 | 2015-03-03 | Seagate Technology Llc | Coupling feature in a magnetoresistive trilayer lamination |
US8922954B2 (en) * | 2013-05-06 | 2014-12-30 | Seagate Technology Llc | Data reader with back edge surface |
US9042062B2 (en) | 2013-08-27 | 2015-05-26 | HGST Netherlands B.V. | Magnetic sensor with recessed AFM shape enhanced pinning and soft magnetic bias |
US9177588B2 (en) | 2014-01-17 | 2015-11-03 | HGST Netherlands B.V. | Recessed IRMN reader process |
US9349397B2 (en) | 2014-03-26 | 2016-05-24 | HGST Netherlands B.V. | Higher stability read head utilizing a partial milling process |
US9099120B1 (en) | 2014-04-09 | 2015-08-04 | HGST Netherlands, B.V. | Interlayer coupling field control in tunneling magnetoresistive read heads |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100225179B1 (ko) * | 1992-11-30 | 1999-10-15 | 니시무로 타이죠 | 박막 자기 헤드 및 자기 저항 효과형 헤드 |
US5729410A (en) * | 1996-11-27 | 1998-03-17 | International Business Machines Corporation | Magnetic tunnel junction device with longitudinal biasing |
JPH10335714A (ja) | 1997-06-05 | 1998-12-18 | Sanyo Electric Co Ltd | 磁気抵抗効果素子 |
US6005753A (en) * | 1998-05-29 | 1999-12-21 | International Business Machines Corporation | Magnetic tunnel junction magnetoresistive read head with longitudinal and transverse bias |
US6185078B1 (en) * | 1998-08-21 | 2001-02-06 | International Business Machines Corporation | Spin valve read head with antiferromagnetic oxide film as longitudinal bias layer and portion of first read gap |
US6636395B1 (en) * | 1999-06-03 | 2003-10-21 | Tdk Corporation | Magnetic transducer and thin film magnetic head using the same |
JP3592140B2 (ja) * | 1999-07-02 | 2004-11-24 | Tdk株式会社 | トンネル磁気抵抗効果型ヘッド |
JP2001291212A (ja) * | 2000-04-07 | 2001-10-19 | Toshiba Corp | 垂直磁気記録ヘッド及び垂直磁気記録装置 |
JP2001307307A (ja) * | 2000-04-19 | 2001-11-02 | Tdk Corp | トンネル磁気抵抗効果素子、薄膜磁気ヘッド、磁気ヘッド装置及び磁気ディスク装置 |
US6563679B1 (en) * | 2000-08-08 | 2003-05-13 | Tdk Corporation | Current perpendicular-to-the-plane magnetoresistance read heads with transverse magnetic bias |
US6724582B2 (en) * | 2001-01-19 | 2004-04-20 | Kabushiki Kaisha Toshiba | Current perpendicular to plane type magnetoresistive device, magnetic head, and magnetic recording/reproducing apparatus |
US6762915B2 (en) * | 2001-09-05 | 2004-07-13 | Seagate Technology Llc | Magnetoresistive sensor with oversized pinned layer |
JP3813914B2 (ja) * | 2002-09-27 | 2006-08-23 | Tdk株式会社 | 薄膜磁気ヘッド |
JP3815676B2 (ja) * | 2002-10-02 | 2006-08-30 | Tdk株式会社 | 磁気抵抗効果素子、薄膜磁気ヘッド、磁気ヘッド装置及び磁気記録再生装置 |
JP3974587B2 (ja) * | 2003-04-18 | 2007-09-12 | アルプス電気株式会社 | Cpp型巨大磁気抵抗効果ヘッド |
JP3961496B2 (ja) * | 2003-04-18 | 2007-08-22 | アルプス電気株式会社 | Cpp型巨大磁気抵抗効果ヘッド |
JP2005251254A (ja) * | 2004-03-02 | 2005-09-15 | Tdk Corp | 薄膜磁気ヘッド、薄膜磁気ヘッドのウエハ、ヘッドジンバルアセンブリ、ハードディスク装置、および薄膜磁気ヘッドの製造方法 |
JP4002909B2 (ja) * | 2004-06-04 | 2007-11-07 | アルプス電気株式会社 | Cpp型巨大磁気抵抗効果ヘッド |
US7525775B2 (en) * | 2005-11-17 | 2009-04-28 | Hitachi Global Storage Technologies Netherlands B.V. | Oblique angle etched underlayers for improved exchange biased structures in a magnetoresitive sensor |
US7522391B2 (en) * | 2005-12-14 | 2009-04-21 | Hitachi Global Storage Technologies Netherlands B.V. | Current perpendicular to plane magnetoresistive sensor having a shape enhanced pinned layer and an in stack bias structure |
US7652856B2 (en) * | 2005-12-27 | 2010-01-26 | Hitachi Global Storage Technologies Netherlands B.V. | Current perpendicular to plane (CPP) magnetoresistive sensor having strong pinning and small gap thickness |
US7672089B2 (en) * | 2006-12-15 | 2010-03-02 | Hitachi Global Storage Technologies Netherlands B.V. | Current-perpendicular-to-plane sensor with dual keeper layers |
-
2007
- 2007-07-17 US US11/879,667 patent/US9007727B2/en not_active Expired - Fee Related
-
2008
- 2008-07-10 JP JP2008179975A patent/JP2009026442A/ja active Pending
- 2008-07-17 CN CN 200810133855 patent/CN101350200B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
US20090021870A1 (en) | 2009-01-22 |
JP2009026442A (ja) | 2009-02-05 |
CN101350200B (zh) | 2011-04-13 |
US9007727B2 (en) | 2015-04-14 |
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Legal Events
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C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C56 | Change in the name or address of the patentee |
Owner name: HGST NETHERLANDS BV Free format text: FORMER NAME: HITACHI GLOBAL STORAGE TECH |
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CP01 | Change in the name or title of a patent holder |
Address after: Amsterdam Patentee after: Hitachi Global Storage Technologies Netherlands B. V. Address before: Amsterdam Patentee before: Hitachi Global Storage Tech |
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TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20190124 Address after: American California Patentee after: Western Digital Technologies, Inc. Address before: Amsterdam Patentee before: Hitachi Global Storage Technologies Netherlands B. V. |